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Weather & Climate in Slosh 1, BC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Slosh 1 has a cool climate with an average annual temperature of 39°F (4°C). Winters average 21°F in January while summers reach 58°F in July. The area gets 293 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 23.8 inches (drier than the 38-inch national average). The area receives 11.5 inches of snow annually. The city sits at an elevation of 1,165 feet.
Temperature
21°F Jan (-6°C)
58°F Jul (14°C)
| Annual Average | 39.4°F |
| 27% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 58°F (14°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 1,165 ft (355 m) |
| Area | 2.7 sq mi (7.0 km²) |
| Population Density | 80/sq mi |
| Coordinates | 50.7202°N, 122.2642°W |
| Timezone | America/Vancouver |
Precipitation & Snow
Air Quality
Earthquake History
21 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Feb 21, 2025 | 28 km W of Squamish, Canada | M4.8 | 146 km | 10 km |
| Feb 19, 1991 | 31 km E of Squamish, Canada | M4.3 | 119 km | 5 km |
| Feb 22, 1996 | 31 km NNE of South Pender Harbour, Canada | M4.1 | 148 km | 2 km |
| Sep 19, 1993 | 32 km ENE of Merritt, Canada | M3.8 | 148 km | 10 km |
| Feb 15, 2015 | 30 km NNE of Sechelt, Canada | M3.4 | 145 km | 3 km |
| Aug 12, 2011 | 38 km NNE of Maple Ridge, Canada | M3.3 | 131 km | 20 km |
| Jan 26, 2024 | 36 km WNW of Squamish, Canada | M3.1 | 135 km | 5 km |
| Apr 4, 2016 | 29 km NNE of Sechelt, Canada | M3.1 | 147 km | 5 km |
| Dec 7, 1990 | 30 km NNE of Sechelt, Canada | M2.9 | 146 km | 5 km |
| Jul 17, 2016 | 41 km NNE of Maple Ridge, Canada | M2.9 | 129 km | 1 km |
| May 16, 2018 | 20 km SW of Whistler, Canada | M2.8 | 104 km | 10 km |
| Jan 26, 2024 | 35 km WNW of Squamish, Canada | M2.8 | 136 km | 5 km |
| Sep 12, 2024 | 35 km NE of South Pender Harbour, Canada | M2.8 | 140 km | 8 km |
| May 3, 2016 | 31 km NNE of Sechelt, Canada | M2.8 | 145 km | 3 km |
| May 8, 2016 | 29 km N of Mission, Canada | M2.7 | 147 km | 1 km |
| Jul 15, 2024 | 35 km WNW of Squamish, Canada | M2.6 | 137 km | 4 km |
| Sep 11, 2000 | 40 km NNW of Agassiz, Canada | M2.6 | 132 km | 8 km |
| Feb 23, 2015 | 26 km NNE of Sechelt, Canada | M2.6 | 148 km | 9 km |
| Aug 11, 1990 | 31 km NNW of Agassiz, Canada | M2.5 | 138 km | -2 km |
| Feb 7, 2022 | 28 km WNW of Hope, Canada | M2.5 | 138 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 38.0 m (125 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2007 | CHEHALIS LAKE, CHILLIWACK | Meteorological | 38.0 m | — | 141 km |
| 1905 | THOMPSON RIVER | Meteorological | 6.0 m | 15 | 73 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Bridge River Cones (80 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Bridge River Cones | Volcanic field | 2,500 m (8,202 ft) | Unknown | 80 km |
| Meager | Complex | 2,680 m (8,793 ft) | -410 | 88 km |
| Cayley Volcanic Field | Volcanic field | 2,375 m (7,792 ft) | Unknown | 98 km |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 102 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 110 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 2.6 in | Coldest |
| February | 26°F (-3°C) | 1.8 in | |
| March | 31°F (-1°C) | 1.5 in | |
| April | 38°F (3°C) | 1.3 in | Driest |
| May | 45°F (7°C) | 1.7 in | |
| June | 52°F (11°C) | 2.0 in | |
| July | 58°F (14°C) | 1.9 in | |
| August | 58°F (15°C) | 1.7 in | Warmest |
| September | 51°F (11°C) | 1.6 in | |
| October | 41°F (5°C) | 2.2 in | |
| November | 29°F (-1°C) | 2.9 in | Wettest |
| December | 22°F (-5°C) | 2.7 in |
Slosh 1 has a seasonal temperature swing of 38°F / from 21°F in January to 58°F in August. Total annual precipitation is 23.8 inches, with November being the wettest month (2.9") and April the driest (1.3").